ML20027A712
| ML20027A712 | |
| Person / Time | |
|---|---|
| Issue date: | 11/24/1981 |
| From: | Aggarwal S NRC OFFICE OF NUCLEAR REGULATORY RESEARCH (RES) |
| To: | Kopeck J NRC OFFICE OF PUBLIC AFFAIRS (OPA) |
| Shared Package | |
| ML20027A669 | List:
|
| References | |
| FOIA-82-426 NUDOCS 8112110041 | |
| Download: ML20027A712 (3) | |
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s HEI!0RANDUt1 FOR: John T. Kopeck, Public Affairs Officer 9
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SUBJECT:
PROPOSED RULEMAKING, "ENVIR0i.14 ENTAL QUALIFICATION OF ^)' j~t_"'. O,
ELECTRIC EQUIPMENT FOR NUCLEAR POWER PLANTS" The subject rule was discussed at the Commission meeting on 71ovenber 10,1981, and is tentatively scheduled for affinnation at an open meeting during the week of November 30, 1981.
Enclosed for your review and concurrence is a copy of the proposed "public announcement." After the affirmation by the Comission, we are proposing to expedite publication of the proposed rule in the Federal Register and will therefore appreciate receiving your craents, if any, by November 30, 1981.
Original Signed By:
Satish K. Aggarwal EEB/DET/RES
Enclosure:
Public Announcement cc: John Phillips,RPS l
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s NRC PROPOSES RULEMAKING ON ENVIRONMENTAL QUALIFICATION OF ELECTRIC EQUIPMENT The Nuclear Regulatory Commission is proposing to amend its regulations to strengthen the criteria for environmental qualification of electric equipment commonly referred to in national standards as " Class lE" and some non-Class lE equipment whose failure can prevent the satisfactory
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accomplishment of safety functions in nuclear power plants.
j The electric equipment items covered under the proposed rule include those important to 5nergency reactor shutdown, containment isolation, reactor core cooling, and containment and reactor heat removal.
Specific methods for qualifying the electrical equipment are contained in national standards, regulatory guides, and NRC regulations. The proposed changes to Part 50 of NRC regulations would codify explicitly the current NRC practice with respect to environmental qualification of electric equipment.
Under the proposed changes, licensees of nuclear power plants would be required to establish a qualification program for testing or analysis, or a combination thereof, which would include the effects of aging, radiation, chemicals, submergence, humidity, and temperature and pressure.
The testing would demonstrate that the electric equipment could perform under normal operation and during and after the most severe design basis events.
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2 Holders of operating licenses would be required to identify the electric equipment already qualified and sut< nit a schedule for the testing or replacement of the remaining electric equipment within 90 days after the
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effective date of the rule. The schedule would contain a goal of final qualification' by the end of the second refueling outage after March 31, 1982.
i The proposed changes to Part 50 are being published in the Federal Register on Interested persons are invited to submit written suggestions or comments to the Secretary of the Commission, U.S.
Nuclear Regulatory Commission, Washington, D.C. 20555, Attention: Docketing and Service Branch, by Additional information on this proposed rule can be obtained from Mr. Satish K. Aggarwal, Electrical Engineering Branch, Office of Nuclear Regulatory Research, U.S.
Nuclear Regulatory Commission, Washington. D.C. 20555, telephone (301) 443-59.46.
Copies of the coments received by the Commission will be available for public inspection at the NRC's Public Document Room,1717 H Street, NW.,
Washington, D.C.
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